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Finding the Fourth Proportional to 546.10, 753.04 and 405.99

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Solution

The fourth proportional to 546.10, 753.04 and 405.99 is: 559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.10 : 753.04 = 405.99 : x
  2. Step 2: Convert to fraction form
    546.10/753.04 = 405.99/x
  3. Step 3: Cross multiply
    546.10x = 753.04 × 405.99
  4. Step 4: Simplify right side
    546.10x = 305,725.69
  5. Step 5: Solve for x
    x = 305,725.69/546.10
  6. Step 6: Final answer
    x = 559.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.